I know the manufacturing date for that mower is 2001. (Last 2 numbers i believe) Don't see a 74228 in Toro's line-up, they do have a 74225 which the five may look like an eight. If it's a 74225, then it's a 62" 23 HP 250 series mower. Check out www.toro.com and look at the 74225. Sorry couldn't be of more help.